11141861 has 4 divisors (see below), whose sum is σ = 11177772. Its totient is φ = 11105952.

The previous prime is 11141839. The next prime is 11141863. The reversal of 11141861 is 16814111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 481636 + 10660225 = 694^2 + 3265^2 .

It is a cyclic number.

It is not a de Polignac number, because 11141861 - 2⁶ = 11141797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11141863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17486 + ... + 18111.

It is an arithmetic number, because the mean of its divisors is an integer number (2794443).

Almost surely, 2^11141861 is an apocalyptic number.

It is an amenable number.

11141861 is a deficient number, since it is larger than the sum of its proper divisors (35911).

11141861 is an equidigital number, since it uses as much as digits as its factorization.

11141861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35910.

The product of its digits is 192, while the sum is 23.

The square root of 11141861 is about 3337.9426298245. The cubic root of 11141861 is about 223.3499769780.

Adding to 11141861 its reverse (16814111), we get a palindrome (27955972).

The spelling of 11141861 in words is "eleven million, one hundred forty-one thousand, eight hundred sixty-one".